*/
#include <linux/config.h>
+#include "sis.h"
#include "drmP.h"
#include "sis_drm.h"
#include "sis_drv.h"
-#define SIS_NAME "sis"
-#define SIS_DESC "SIS 300/630/540"
-#define SIS_DATE "20000831"
-#define SIS_MAJOR 1
-#define SIS_MINOR 0
-#define SIS_PATCHLEVEL 0
-
-static drm_device_t sis_device;
-drm_ctx_t sis_res_ctx;
-
-static struct file_operations sis_fops = {
-#if LINUX_VERSION_CODE >= 0x020400
- /* This started being used during 2.4.0-test */
- owner: THIS_MODULE,
-#endif
- open: sis_open,
- flush: drm_flush,
- release: sis_release,
- ioctl: sis_ioctl,
- mmap: drm_mmap,
- read: drm_read,
- fasync: drm_fasync,
- poll: drm_poll,
-};
-
-static struct miscdevice sis_misc = {
- minor: MISC_DYNAMIC_MINOR,
- name: SIS_NAME,
- fops: &sis_fops,
-};
-
-static drm_ioctl_desc_t sis_ioctls[] = {
- [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { sis_version, 0, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { drm_getunique, 0, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = { drm_getmagic, 0, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { drm_irq_busid, 0, 1 },
-
- [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { drm_setunique, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { drm_block, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = { drm_unblock, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { drm_authmagic, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = { drm_addmap, 1, 1 },
-
- [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { sis_addctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { sis_rmctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { sis_modctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { sis_getctx, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { sis_switchctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { sis_newctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { sis_resctx, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { drm_adddraw, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { drm_rmdraw, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { sis_lock, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { sis_unlock, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { drm_finish, 1, 0 },
-#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)] = {drm_agp_acquire, 1, 1},
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = {drm_agp_release, 1, 1},
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = {drm_agp_enable, 1, 1},
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = {drm_agp_info, 1, 1},
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = {drm_agp_alloc, 1, 1},
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = {drm_agp_free, 1, 1},
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = {drm_agp_bind, 1, 1},
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = {drm_agp_unbind, 1, 1},
-#endif
- /* FB Memory Management */
- [DRM_IOCTL_NR(SIS_IOCTL_FB_ALLOC)] = { sis_fb_alloc, 1, 1 },
- [DRM_IOCTL_NR(SIS_IOCTL_FB_FREE)] = { sis_fb_free, 1, 1 },
-
- /* AGP Memory Management */
- [DRM_IOCTL_NR(SIS_IOCTL_AGP_INIT)] = { sis_agp_init, 1, 1 },
- [DRM_IOCTL_NR(SIS_IOCTL_AGP_ALLOC)] = { sis_agp_alloc, 1, 1 },
- [DRM_IOCTL_NR(SIS_IOCTL_AGP_FREE)] = { sis_agp_free, 1, 1 },
-
-#if defined(SIS_STEREO)
- [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { sis_control, 1, 1 },
- [DRM_IOCTL_NR(SIS_IOCTL_FLIP)] = { sis_flip, 1, 1 },
- [DRM_IOCTL_NR(SIS_IOCTL_FLIP_INIT)] = { sis_flip_init, 1, 1 },
- [DRM_IOCTL_NR(SIS_IOCTL_FLIP_FINAL)] = { sis_flip_final, 1, 1 },
-#endif
-};
-#define SIS_IOCTL_COUNT DRM_ARRAY_SIZE(sis_ioctls)
-
-#ifdef MODULE
-static char *sis = NULL;
-#endif
-
-MODULE_AUTHOR("VA Linux Systems, Inc.");
-MODULE_DESCRIPTION("sis");
-MODULE_PARM(sis, "s");
-
-#ifndef MODULE
-/* sis_options is called by the kernel to parse command-line options
- * passed via the boot-loader (e.g., LILO). It calls the insmod option
- * routine, drm_parse_drm.
- */
-
-static int __init sis_options(char *str)
-{
- drm_parse_options(str);
- return 1;
-}
-
-__setup("sis=", sis_options);
-#endif
-
-static int sis_setup(drm_device_t *dev)
-{
- int i;
-
- atomic_set(&dev->ioctl_count, 0);
- atomic_set(&dev->vma_count, 0);
- dev->buf_use = 0;
- atomic_set(&dev->buf_alloc, 0);
-
- atomic_set(&dev->total_open, 0);
- atomic_set(&dev->total_close, 0);
- atomic_set(&dev->total_ioctl, 0);
- atomic_set(&dev->total_irq, 0);
- atomic_set(&dev->total_ctx, 0);
- atomic_set(&dev->total_locks, 0);
- atomic_set(&dev->total_unlocks, 0);
- atomic_set(&dev->total_contends, 0);
- atomic_set(&dev->total_sleeps, 0);
-
- for (i = 0; i < DRM_HASH_SIZE; i++) {
- dev->magiclist[i].head = NULL;
- dev->magiclist[i].tail = NULL;
- }
- dev->maplist = NULL;
- dev->map_count = 0;
- dev->vmalist = NULL;
- dev->lock.hw_lock = NULL;
- init_waitqueue_head(&dev->lock.lock_queue);
- dev->queue_count = 0;
- dev->queue_reserved = 0;
- dev->queue_slots = 0;
- dev->queuelist = NULL;
- dev->irq = 0;
- dev->context_flag = 0;
- dev->interrupt_flag = 0;
- dev->dma = 0;
- dev->dma_flag = 0;
- dev->last_context = 0;
- dev->last_switch = 0;
- dev->last_checked = 0;
- init_timer(&dev->timer);
- init_waitqueue_head(&dev->context_wait);
-
- dev->ctx_start = 0;
- dev->lck_start = 0;
-
- dev->buf_rp = dev->buf;
- dev->buf_wp = dev->buf;
- dev->buf_end = dev->buf + DRM_BSZ;
- dev->buf_async = NULL;
- init_waitqueue_head(&dev->buf_readers);
- init_waitqueue_head(&dev->buf_writers);
-
- sis_res_ctx.handle=-1;
-
- DRM_DEBUG("\n");
-
- /* The kernel's context could be created here, but is now created
- in drm_dma_enqueue. This is more resource-efficient for
- hardware that does not do DMA, but may mean that
- drm_select_queue fails between the time the interrupt is
- initialized and the time the queues are initialized. */
-
- return 0;
-}
-
-
-static int sis_takedown(drm_device_t *dev)
-{
- int i;
- drm_magic_entry_t *pt, *next;
- drm_map_t *map;
- drm_vma_entry_t *vma, *vma_next;
-
- DRM_DEBUG("\n");
-
-#if defined(SIS_STEREO)
- if (dev->irq) sis_irq_uninstall(dev);
-#endif
-
- down(&dev->struct_sem);
- del_timer(&dev->timer);
-
- if (dev->devname) {
- drm_free(dev->devname, strlen(dev->devname)+1, DRM_MEM_DRIVER);
- dev->devname = NULL;
- }
-
- if (dev->unique) {
- drm_free(dev->unique, strlen(dev->unique)+1, DRM_MEM_DRIVER);
- dev->unique = NULL;
- dev->unique_len = 0;
- }
- /* Clear pid list */
- for (i = 0; i < DRM_HASH_SIZE; i++) {
- for (pt = dev->magiclist[i].head; pt; pt = next) {
- next = pt->next;
- drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC);
- }
- dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
- }
-#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- /* Clear AGP information */
- if (dev->agp) {
- drm_agp_mem_t *temp;
- drm_agp_mem_t *temp_next;
-
- temp = dev->agp->memory;
- while(temp != NULL) {
- temp_next = temp->next;
- drm_free_agp(temp->memory, temp->pages);
- drm_free(temp, sizeof(*temp), DRM_MEM_AGPLISTS);
- temp = temp_next;
- }
- if (dev->agp->acquired) _drm_agp_release();
- }
-#endif
- /* Clear vma list (only built for debugging) */
- if (dev->vmalist) {
- for (vma = dev->vmalist; vma; vma = vma_next) {
- vma_next = vma->next;
- drm_free(vma, sizeof(*vma), DRM_MEM_VMAS);
- }
- dev->vmalist = NULL;
- }
-
- /* Clear map area and mtrr information */
- if (dev->maplist) {
- for (i = 0; i < dev->map_count; i++) {
- map = dev->maplist[i];
- switch (map->type) {
- case _DRM_REGISTERS:
- case _DRM_FRAME_BUFFER:
-#ifdef CONFIG_MTRR
- if (map->mtrr >= 0) {
- int retcode;
- retcode = mtrr_del(map->mtrr,
- map->offset,
- map->size);
- DRM_DEBUG("mtrr_del = %d\n", retcode);
- }
-#endif
- drm_ioremapfree(map->handle, map->size);
- break;
- case _DRM_SHM:
- drm_free_pages((unsigned long)map->handle,
- drm_order(map->size)
- - PAGE_SHIFT,
- DRM_MEM_SAREA);
- break;
- case _DRM_AGP:
- /* Do nothing here, because this is all
- handled in the AGP/GART driver. */
- break;
- }
- drm_free(map, sizeof(*map), DRM_MEM_MAPS);
- }
- drm_free(dev->maplist,
- dev->map_count * sizeof(*dev->maplist),
- DRM_MEM_MAPS);
- dev->maplist = NULL;
- dev->map_count = 0;
- }
-
- if (dev->lock.hw_lock) {
- dev->lock.hw_lock = NULL; /* SHM removed */
- dev->lock.pid = 0;
- wake_up_interruptible(&dev->lock.lock_queue);
- }
- up(&dev->struct_sem);
-
- return 0;
-}
-
-/* sis_init is called via init_module at module load time, or via
- * linux/init/main.c (this is not currently supported). */
-
-static int sis_init(void)
-{
- int retcode;
- drm_device_t *dev = &sis_device;
-
- DRM_DEBUG("\n");
-
- memset((void *)dev, 0, sizeof(*dev));
- dev->count_lock = SPIN_LOCK_UNLOCKED;
- sema_init(&dev->struct_sem, 1);
-
-#ifdef MODULE
- drm_parse_options(sis);
-#endif
-
- if ((retcode = misc_register(&sis_misc))) {
- DRM_ERROR("Cannot register \"%s\"\n", SIS_NAME);
- return retcode;
- }
- dev->device = MKDEV(MISC_MAJOR, sis_misc.minor);
- dev->name = SIS_NAME;
-
- drm_mem_init();
- drm_proc_init(dev);
-#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- dev->agp = drm_agp_init();
-#endif
- if((retcode = drm_ctxbitmap_init(dev))) {
- DRM_ERROR("Cannot allocate memory for context bitmap.\n");
- drm_proc_cleanup();
- misc_deregister(&sis_misc);
- sis_takedown(dev);
- return retcode;
- }
-
- DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
- SIS_NAME,
- SIS_MAJOR,
- SIS_MINOR,
- SIS_PATCHLEVEL,
- SIS_DATE,
- sis_misc.minor);
-
- return 0;
-}
-
-/* sis_cleanup is called via cleanup_module at module unload time. */
-
-static void sis_cleanup(void)
-{
- drm_device_t *dev = &sis_device;
-
- DRM_DEBUG("\n");
-
- drm_proc_cleanup();
- if (misc_deregister(&sis_misc)) {
- DRM_ERROR("Cannot unload module\n");
- } else {
- DRM_INFO("Module unloaded\n");
- }
- drm_ctxbitmap_cleanup(dev);
- sis_takedown(dev);
-#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- if (dev->agp) {
- drm_agp_uninit();
- drm_free(dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS);
- dev->agp = NULL;
- }
-#endif
-}
-
-module_init(sis_init);
-module_exit(sis_cleanup);
-
-
-int sis_version(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_version_t version;
- int len;
-
- if (copy_from_user(&version, (drm_version_t *)arg, sizeof(version)))
- return -EFAULT;
-
-#define DRM_COPY(name,value) \
- len = strlen(value); \
- if (len > name##_len) len = name##_len; \
- name##_len = strlen(value); \
- if (len && name) { \
- if (copy_to_user(name, value, len)) \
- return -EFAULT; \
- }
-
- version.version_major = SIS_MAJOR;
- version.version_minor = SIS_MINOR;
- version.version_patchlevel = SIS_PATCHLEVEL;
-
- DRM_COPY(version.name, SIS_NAME);
- DRM_COPY(version.date, SIS_DATE);
- DRM_COPY(version.desc, SIS_DESC);
-
- if (copy_to_user((drm_version_t *)arg, &version, sizeof(version)))
- return -EFAULT;
- return 0;
-}
-
-int sis_open(struct inode *inode, struct file *filp)
-{
- drm_device_t *dev = &sis_device;
- int retcode = 0;
-
- DRM_DEBUG("open_count = %d\n", dev->open_count);
- if (!(retcode = drm_open_helper(inode, filp, dev))) {
-#if LINUX_VERSION_CODE < 0x020333
- MOD_INC_USE_COUNT; /* Needed before Linux 2.3.51 */
-#endif
- atomic_inc(&dev->total_open);
- spin_lock(&dev->count_lock);
- if (!dev->open_count++) {
- spin_unlock(&dev->count_lock);
- return sis_setup(dev);
- }
- spin_unlock(&dev->count_lock);
- }
- return retcode;
-}
-
-int sis_release(struct inode *inode, struct file *filp)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev;
- int retcode = 0;
-
- lock_kernel();
- dev = priv->dev;
-
- DRM_DEBUG("open_count = %d\n", dev->open_count);
- if (!(retcode = drm_release(inode, filp))) {
-#if LINUX_VERSION_CODE < 0x020333
- MOD_DEC_USE_COUNT; /* Needed before Linux 2.3.51 */
-#endif
- atomic_inc(&dev->total_close);
- spin_lock(&dev->count_lock);
- if (!--dev->open_count) {
- if (atomic_read(&dev->ioctl_count) || dev->blocked) {
- DRM_ERROR("Device busy: %d %d\n",
- atomic_read(&dev->ioctl_count),
- dev->blocked);
- spin_unlock(&dev->count_lock);
- unlock_kernel();
- return -EBUSY;
- }
- spin_unlock(&dev->count_lock);
- unlock_kernel();
- return sis_takedown(dev);
- }
- spin_unlock(&dev->count_lock);
- }
-
- unlock_kernel();
- return retcode;
-}
-
-/* sis_ioctl is called whenever a process performs an ioctl on /dev/drm. */
-
-int sis_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- int nr = DRM_IOCTL_NR(cmd);
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- int retcode = 0;
- drm_ioctl_desc_t *ioctl;
- drm_ioctl_t *func;
-
- atomic_inc(&dev->ioctl_count);
- atomic_inc(&dev->total_ioctl);
- ++priv->ioctl_count;
-
- DRM_DEBUG("pid = %d, cmd = 0x%02x, nr = 0x%02x, dev 0x%x, auth = %d\n",
- current->pid, cmd, nr, dev->device, priv->authenticated);
-
- if (nr >= SIS_IOCTL_COUNT) {
- retcode = -EINVAL;
- } else {
- ioctl = &sis_ioctls[nr];
- func = ioctl->func;
-
- if (!func) {
- DRM_DEBUG("no function\n");
- retcode = -EINVAL;
- } else if ((ioctl->root_only && !capable(CAP_SYS_ADMIN))
- || (ioctl->auth_needed && !priv->authenticated)) {
- retcode = -EACCES;
- } else {
- retcode = (func)(inode, filp, cmd, arg);
- }
- }
-
- atomic_dec(&dev->ioctl_count);
- return retcode;
-}
-
-int sis_lock(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- DECLARE_WAITQUEUE(entry, current);
- int ret = 0;
- drm_lock_t lock;
-#if DRM_DMA_HISTOGRAM
- cycles_t start;
-
- dev->lck_start = start = get_cycles();
-#endif
-
- if (copy_from_user(&lock, (drm_lock_t *)arg, sizeof(lock)))
- return -EFAULT;
-
- if (lock.context == DRM_KERNEL_CONTEXT) {
- DRM_ERROR("Process %d using kernel context %d\n",
- current->pid, lock.context);
- return -EINVAL;
- }
-
- DRM_DEBUG("%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
- lock.context, current->pid, dev->lock.hw_lock->lock,
- lock.flags);
-
-#if 0
- /* dev->queue_count == 0 right now for
- sis. FIXME? */
- if (lock.context < 0 || lock.context >= dev->queue_count)
- return -EINVAL;
-#endif
-
- if (!ret) {
-#if 0
- if (_DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)
- != lock.context) {
- long j = jiffies - dev->lock.lock_time;
-
- if (lock.context == sis_res_ctx.handle &&
- j >= 0 && j < DRM_LOCK_SLICE) {
- /* Can't take lock if we just had it and
- there is contention. */
- DRM_DEBUG("%d (pid %d) delayed j=%d dev=%d jiffies=%d\n",
- lock.context, current->pid, j,
- dev->lock.lock_time, jiffies);
- current->state = TASK_INTERRUPTIBLE;
- current->policy |= SCHED_YIELD;
- schedule_timeout(DRM_LOCK_SLICE-j);
- DRM_DEBUG("jiffies=%d\n", jiffies);
- }
- }
-#endif
- add_wait_queue(&dev->lock.lock_queue, &entry);
- for (;;) {
- current->state = TASK_INTERRUPTIBLE;
- if (!dev->lock.hw_lock) {
- /* Device has been unregistered */
- ret = -EINTR;
- break;
- }
- if (drm_lock_take(&dev->lock.hw_lock->lock,
- lock.context)) {
- dev->lock.pid = current->pid;
- dev->lock.lock_time = jiffies;
- atomic_inc(&dev->total_locks);
- break; /* Got lock */
- }
-
- /* Contention */
- atomic_inc(&dev->total_sleeps);
-#if 1
- current->policy |= SCHED_YIELD;
-#endif
- schedule();
- if (signal_pending(current)) {
- ret = -ERESTARTSYS;
- break;
- }
- }
- current->state = TASK_RUNNING;
- remove_wait_queue(&dev->lock.lock_queue, &entry);
- }
-
-#if 0
- if (!ret && dev->last_context != lock.context &&
- lock.context != sis_res_ctx.handle &&
- dev->last_context != sis_res_ctx.handle) {
- add_wait_queue(&dev->context_wait, &entry);
- current->state = TASK_INTERRUPTIBLE;
- /* PRE: dev->last_context != lock.context */
- sis_context_switch(dev, dev->last_context, lock.context);
- /* POST: we will wait for the context
- switch and will dispatch on a later call
- when dev->last_context == lock.context
- NOTE WE HOLD THE LOCK THROUGHOUT THIS
- TIME! */
- current->policy |= SCHED_YIELD;
- schedule();
- current->state = TASK_RUNNING;
- remove_wait_queue(&dev->context_wait, &entry);
- if (signal_pending(current)) {
- ret = -EINTR;
- } else if (dev->last_context != lock.context) {
- DRM_ERROR("Context mismatch: %d %d\n",
- dev->last_context, lock.context);
- }
- }
-#endif
-
- if (!ret) {
- sigemptyset(&dev->sigmask);
- sigaddset(&dev->sigmask, SIGSTOP);
- sigaddset(&dev->sigmask, SIGTSTP);
- sigaddset(&dev->sigmask, SIGTTIN);
- sigaddset(&dev->sigmask, SIGTTOU);
- dev->sigdata.context = lock.context;
- dev->sigdata.lock = dev->lock.hw_lock;
- block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask);
-
- if (lock.flags & _DRM_LOCK_READY) {
- /* Wait for space in DMA/FIFO */
- }
- if (lock.flags & _DRM_LOCK_QUIESCENT) {
- /* Make hardware quiescent */
-#if 0
- sis_quiescent(dev);
-#endif
- }
- }
-
- DRM_DEBUG("%d %s\n", lock.context, ret ? "interrupted" : "has lock");
-
-#if DRM_DMA_HISTOGRAM
- atomic_inc(&dev->histo.lacq[drm_histogram_slot(get_cycles() - start)]);
-#endif
-
- return ret;
-}
-
-
-int sis_unlock(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_lock_t lock;
-
- if (copy_from_user(&lock, (drm_lock_t *)arg, sizeof(lock)))
- return -EFAULT;
-
- if (lock.context == DRM_KERNEL_CONTEXT) {
- DRM_ERROR("Process %d using kernel context %d\n",
- current->pid, lock.context);
- return -EINVAL;
- }
-
- DRM_DEBUG("%d frees lock (%d holds)\n",
- lock.context,
- _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
- atomic_inc(&dev->total_unlocks);
- if (_DRM_LOCK_IS_CONT(dev->lock.hw_lock->lock))
- atomic_inc(&dev->total_contends);
- drm_lock_transfer(dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT);
- /* FIXME: Try to send data to card here */
- if (!dev->context_flag) {
- if (drm_lock_free(dev, &dev->lock.hw_lock->lock,
- DRM_KERNEL_CONTEXT)) {
- DRM_ERROR("\n");
- }
- }
-
- unblock_all_signals();
- return 0;
-}
+#define DRIVER_AUTHOR "SIS"
+#define DRIVER_NAME "sis"
+#define DRIVER_DESC "SIS 300/630/540"
+#define DRIVER_DATE "20010503"
+#define DRIVER_MAJOR 1
+#define DRIVER_MINOR 0
+#define DRIVER_PATCHLEVEL 0
+
+#define DRIVER_IOCTLS
+#if 0 /* these don't appear to be defined */
+ /* SIS Stereo */
+ [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { sis_control, 1, 1 },
+ [DRM_IOCTL_NR(SIS_IOCTL_FLIP)] = { sis_flip, 1, 1 },
+ [DRM_IOCTL_NR(SIS_IOCTL_FLIP_INIT)] = { sis_flip_init, 1, 1 },
+ [DRM_IOCTL_NR(SIS_IOCTL_FLIP_FINAL)] = { sis_flip_final, 1, 1 }
+#endif
+
+#define __HAVE_COUNTERS 5
+
+#include "drm_auth.h"
+#include "drm_agpsupport.h"
+#include "drm_bufs.h"
+#include "drm_context.h"
+#include "drm_dma.h"
+#include "drm_drawable.h"
+#include "drm_drv.h"
+#include "drm_fops.h"
+#include "drm_init.h"
+#include "drm_ioctl.h"
+#include "drm_lists.h"
+#include "drm_lock.h"
+#include "drm_memory.h"
+#include "drm_proc.h"
+#include "drm_vm.h"
+#include "drm_stub.h"
# file to see if we can, at least, compile the driver.
MODS += sis.o
-SISOBJS= sis_drv.o sis_context.o sis_ds.o sis_mm.o
-SISHEADERS= sis_drv.h sis_ds.h sis_drm.h $(DRMHEADERS)
+SISOBJS= sis_drv.o
+SISHEADERS= sis_drv.h sis_drm.h $(DRMHEADERS)
MODCFLAGS += -DCONFIG_DRM_SIS
endif
dristat: dristat.c
$(CC) $(PRGCFLAGS) $< -o $@
+DRIsetup: DRIsetup.c
+ $(CC) $(PRGCFLAGS) $< -o $@ -L/usr/X11R6/lib -lGL -lm ../../../../parser/libxf86config.a ../libdrm.a
+
gamma_drv.o: gamma_drv.c
$(CC) $(MODCFLAGS) -DEXPORT_SYMTAB -I$(TREE) -c $< -o $@
gamma.o: $(GAMMAOBJS)
#ifdef CONFIG_DRM_SIS
/* SiS specific ioctls */
-#define SIS_IOCTL_FB_ALLOC DRM_IOWR(0x44, drm_sis_mem_t)
-#define SIS_IOCTL_FB_FREE DRM_IOW( 0x45, drm_sis_mem_t)
-#define SIS_IOCTL_AGP_INIT DRM_IOWR(0x53, drm_sis_agp_t)
-#define SIS_IOCTL_AGP_ALLOC DRM_IOWR(0x54, drm_sis_mem_t)
-#define SIS_IOCTL_AGP_FREE DRM_IOW( 0x55, drm_sis_mem_t)
#define SIS_IOCTL_FLIP DRM_IOW( 0x48, drm_sis_flip_t)
#define SIS_IOCTL_FLIP_INIT DRM_IO( 0x49)
#define SIS_IOCTL_FLIP_FINAL DRM_IO( 0x50)
int retcode = 0;
drm_dma_t d;
-#if 0
- LOCK_TEST_WITH_RETURN( dev );
-#endif
-
if (copy_from_user(&d, (drm_dma_t *)arg, sizeof(d)))
return -EFAULT;
+++ /dev/null
-/* sis_context.c -- IOCTLs for sis contexts -*- linux-c -*-
- * Created: Thu Oct 7 10:50:22 1999 by faith@precisioninsight.com
- *
- * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
- * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Rickard E. (Rik) Faith <faith@valinux.com>
- * Daryll Strauss <daryll@valinux.com>
- * Sung-Ching Lin <sclin@sis.com.tw>
- *
- */
-
-#define __NO_VERSION__
-#include "drmP.h"
-#include "sis_drv.h"
-
-extern drm_ctx_t sis_res_ctx;
-
-static int sis_alloc_queue(drm_device_t *dev)
-{
- return drm_ctxbitmap_next(dev);
-}
-
-int sis_context_switch(drm_device_t *dev, int old, int new)
-{
- char buf[64];
-
- atomic_inc(&dev->total_ctx);
-
- if (test_and_set_bit(0, &dev->context_flag)) {
- DRM_ERROR("Reentering -- FIXME\n");
- return -EBUSY;
- }
-
-#if DRM_DMA_HISTOGRAM
- dev->ctx_start = get_cycles();
-#endif
-
- DRM_DEBUG("Context switch from %d to %d\n", old, new);
-
- if (new == dev->last_context) {
- clear_bit(0, &dev->context_flag);
- return 0;
- }
-
- if (drm_flags & DRM_FLAG_NOCTX) {
- sis_context_switch_complete(dev, new);
- } else {
- sprintf(buf, "C %d %d\n", old, new);
- drm_write_string(dev, buf);
- }
-
- return 0;
-}
-
-int sis_context_switch_complete(drm_device_t *dev, int new)
-{
- dev->last_context = new; /* PRE/POST: This is the _only_ writer. */
- dev->last_switch = jiffies;
-
- if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("Lock isn't held after context switch\n");
- }
-
- /* If a context switch is ever initiated
- when the kernel holds the lock, release
- that lock here. */
-#if DRM_DMA_HISTOGRAM
- atomic_inc(&dev->histo.ctx[drm_histogram_slot(get_cycles()
- - dev->ctx_start)]);
-
-#endif
- clear_bit(0, &dev->context_flag);
- wake_up(&dev->context_wait);
-
- return 0;
-}
-
-
-int sis_resctx(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_ctx_res_t res;
- drm_ctx_t ctx;
- int i;
-
- DRM_DEBUG("%d\n", DRM_RESERVED_CONTEXTS);
- if (copy_from_user(&res, (drm_ctx_res_t *)arg, sizeof(res)))
- return -EFAULT;
- if (res.count >= DRM_RESERVED_CONTEXTS) {
- memset(&ctx, 0, sizeof(ctx));
- for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
- ctx.handle = i;
- if (copy_to_user(&res.contexts[i], &i, sizeof(i)))
- return -EFAULT;
- }
- }
- res.count = DRM_RESERVED_CONTEXTS;
- if (copy_to_user((drm_ctx_res_t *)arg, &res, sizeof(res)))
- return -EFAULT;
- return 0;
-}
-
-
-int sis_addctx(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_ctx_t ctx;
-
- if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
- return -EFAULT;
- if ((ctx.handle = sis_alloc_queue(dev)) == DRM_KERNEL_CONTEXT) {
- /* Skip kernel's context and get a new one. */
- ctx.handle = sis_alloc_queue(dev);
- }
- DRM_DEBUG("%d\n", ctx.handle);
- if (ctx.handle == -1) {
- DRM_DEBUG("Not enough free contexts.\n");
- /* Should this return -EBUSY instead? */
- return -ENOMEM;
- }
-
- /* new added */
- sis_init_context(ctx.handle);
-
- if (copy_to_user((drm_ctx_t *)arg, &ctx, sizeof(ctx)))
- return -EFAULT;
- return 0;
-}
-
-int sis_modctx(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_ctx_t ctx;
-
- if (copy_from_user(&ctx, (drm_ctx_t*)arg, sizeof(ctx)))
- return -EFAULT;
- if (ctx.flags==_DRM_CONTEXT_PRESERVED)
- sis_res_ctx.handle=ctx.handle;
- return 0;
-}
-
-int sis_getctx(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_ctx_t ctx;
-
- if (copy_from_user(&ctx, (drm_ctx_t*)arg, sizeof(ctx)))
- return -EFAULT;
- /* This is 0, because we don't hanlde any context flags */
- ctx.flags = 0;
- if (copy_to_user((drm_ctx_t*)arg, &ctx, sizeof(ctx)))
- return -EFAULT;
- return 0;
-}
-
-int sis_switchctx(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_ctx_t ctx;
-
- if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
- return -EFAULT;
- DRM_DEBUG("%d\n", ctx.handle);
- return sis_context_switch(dev, dev->last_context, ctx.handle);
-}
-
-int sis_newctx(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_ctx_t ctx;
-
- if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
- return -EFAULT;
- DRM_DEBUG("%d\n", ctx.handle);
- sis_context_switch_complete(dev, ctx.handle);
-
- return 0;
-}
-
-int sis_rmctx(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_ctx_t ctx;
-
- if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
- return -EFAULT;
- DRM_DEBUG("%d\n", ctx.handle);
- drm_ctxbitmap_free(dev, ctx.handle);
-
- return 0;
-}
*/
#include <linux/config.h>
+#include "sis.h"
#include "drmP.h"
#include "sis_drm.h"
#include "sis_drv.h"
-#define SIS_NAME "sis"
-#define SIS_DESC "SIS 300/630/540"
-#define SIS_DATE "20000831"
-#define SIS_MAJOR 1
-#define SIS_MINOR 0
-#define SIS_PATCHLEVEL 0
-
-static drm_device_t sis_device;
-drm_ctx_t sis_res_ctx;
-
-static struct file_operations sis_fops = {
-#if LINUX_VERSION_CODE >= 0x020400
- /* This started being used during 2.4.0-test */
- owner: THIS_MODULE,
-#endif
- open: sis_open,
- flush: drm_flush,
- release: sis_release,
- ioctl: sis_ioctl,
- mmap: drm_mmap,
- read: drm_read,
- fasync: drm_fasync,
- poll: drm_poll,
-};
-
-static struct miscdevice sis_misc = {
- minor: MISC_DYNAMIC_MINOR,
- name: SIS_NAME,
- fops: &sis_fops,
-};
-
-static drm_ioctl_desc_t sis_ioctls[] = {
- [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { sis_version, 0, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { drm_getunique, 0, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = { drm_getmagic, 0, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { drm_irq_busid, 0, 1 },
-
- [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { drm_setunique, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { drm_block, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = { drm_unblock, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { drm_authmagic, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = { drm_addmap, 1, 1 },
-
- [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { sis_addctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { sis_rmctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { sis_modctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { sis_getctx, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { sis_switchctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { sis_newctx, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { sis_resctx, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { drm_adddraw, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { drm_rmdraw, 1, 1 },
- [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { sis_lock, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { sis_unlock, 1, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { drm_finish, 1, 0 },
-#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)] = {drm_agp_acquire, 1, 1},
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = {drm_agp_release, 1, 1},
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = {drm_agp_enable, 1, 1},
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = {drm_agp_info, 1, 1},
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = {drm_agp_alloc, 1, 1},
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = {drm_agp_free, 1, 1},
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = {drm_agp_bind, 1, 1},
- [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = {drm_agp_unbind, 1, 1},
-#endif
- /* FB Memory Management */
- [DRM_IOCTL_NR(SIS_IOCTL_FB_ALLOC)] = { sis_fb_alloc, 1, 1 },
- [DRM_IOCTL_NR(SIS_IOCTL_FB_FREE)] = { sis_fb_free, 1, 1 },
-
- /* AGP Memory Management */
- [DRM_IOCTL_NR(SIS_IOCTL_AGP_INIT)] = { sis_agp_init, 1, 1 },
- [DRM_IOCTL_NR(SIS_IOCTL_AGP_ALLOC)] = { sis_agp_alloc, 1, 1 },
- [DRM_IOCTL_NR(SIS_IOCTL_AGP_FREE)] = { sis_agp_free, 1, 1 },
-
-#if defined(SIS_STEREO)
- [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { sis_control, 1, 1 },
- [DRM_IOCTL_NR(SIS_IOCTL_FLIP)] = { sis_flip, 1, 1 },
- [DRM_IOCTL_NR(SIS_IOCTL_FLIP_INIT)] = { sis_flip_init, 1, 1 },
- [DRM_IOCTL_NR(SIS_IOCTL_FLIP_FINAL)] = { sis_flip_final, 1, 1 },
-#endif
-};
-#define SIS_IOCTL_COUNT DRM_ARRAY_SIZE(sis_ioctls)
-
-#ifdef MODULE
-static char *sis = NULL;
-#endif
-
-MODULE_AUTHOR("VA Linux Systems, Inc.");
-MODULE_DESCRIPTION("sis");
-MODULE_PARM(sis, "s");
-
-#ifndef MODULE
-/* sis_options is called by the kernel to parse command-line options
- * passed via the boot-loader (e.g., LILO). It calls the insmod option
- * routine, drm_parse_drm.
- */
-
-static int __init sis_options(char *str)
-{
- drm_parse_options(str);
- return 1;
-}
-
-__setup("sis=", sis_options);
-#endif
-
-static int sis_setup(drm_device_t *dev)
-{
- int i;
-
- atomic_set(&dev->ioctl_count, 0);
- atomic_set(&dev->vma_count, 0);
- dev->buf_use = 0;
- atomic_set(&dev->buf_alloc, 0);
-
- atomic_set(&dev->total_open, 0);
- atomic_set(&dev->total_close, 0);
- atomic_set(&dev->total_ioctl, 0);
- atomic_set(&dev->total_irq, 0);
- atomic_set(&dev->total_ctx, 0);
- atomic_set(&dev->total_locks, 0);
- atomic_set(&dev->total_unlocks, 0);
- atomic_set(&dev->total_contends, 0);
- atomic_set(&dev->total_sleeps, 0);
-
- for (i = 0; i < DRM_HASH_SIZE; i++) {
- dev->magiclist[i].head = NULL;
- dev->magiclist[i].tail = NULL;
- }
- dev->maplist = NULL;
- dev->map_count = 0;
- dev->vmalist = NULL;
- dev->lock.hw_lock = NULL;
- init_waitqueue_head(&dev->lock.lock_queue);
- dev->queue_count = 0;
- dev->queue_reserved = 0;
- dev->queue_slots = 0;
- dev->queuelist = NULL;
- dev->irq = 0;
- dev->context_flag = 0;
- dev->interrupt_flag = 0;
- dev->dma = 0;
- dev->dma_flag = 0;
- dev->last_context = 0;
- dev->last_switch = 0;
- dev->last_checked = 0;
- init_timer(&dev->timer);
- init_waitqueue_head(&dev->context_wait);
-
- dev->ctx_start = 0;
- dev->lck_start = 0;
-
- dev->buf_rp = dev->buf;
- dev->buf_wp = dev->buf;
- dev->buf_end = dev->buf + DRM_BSZ;
- dev->buf_async = NULL;
- init_waitqueue_head(&dev->buf_readers);
- init_waitqueue_head(&dev->buf_writers);
-
- sis_res_ctx.handle=-1;
-
- DRM_DEBUG("\n");
-
- /* The kernel's context could be created here, but is now created
- in drm_dma_enqueue. This is more resource-efficient for
- hardware that does not do DMA, but may mean that
- drm_select_queue fails between the time the interrupt is
- initialized and the time the queues are initialized. */
-
- return 0;
-}
-
-
-static int sis_takedown(drm_device_t *dev)
-{
- int i;
- drm_magic_entry_t *pt, *next;
- drm_map_t *map;
- drm_vma_entry_t *vma, *vma_next;
-
- DRM_DEBUG("\n");
-
-#if defined(SIS_STEREO)
- if (dev->irq) sis_irq_uninstall(dev);
-#endif
-
- down(&dev->struct_sem);
- del_timer(&dev->timer);
-
- if (dev->devname) {
- drm_free(dev->devname, strlen(dev->devname)+1, DRM_MEM_DRIVER);
- dev->devname = NULL;
- }
-
- if (dev->unique) {
- drm_free(dev->unique, strlen(dev->unique)+1, DRM_MEM_DRIVER);
- dev->unique = NULL;
- dev->unique_len = 0;
- }
- /* Clear pid list */
- for (i = 0; i < DRM_HASH_SIZE; i++) {
- for (pt = dev->magiclist[i].head; pt; pt = next) {
- next = pt->next;
- drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC);
- }
- dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
- }
-#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- /* Clear AGP information */
- if (dev->agp) {
- drm_agp_mem_t *temp;
- drm_agp_mem_t *temp_next;
-
- temp = dev->agp->memory;
- while(temp != NULL) {
- temp_next = temp->next;
- drm_free_agp(temp->memory, temp->pages);
- drm_free(temp, sizeof(*temp), DRM_MEM_AGPLISTS);
- temp = temp_next;
- }
- if (dev->agp->acquired) _drm_agp_release();
- }
-#endif
- /* Clear vma list (only built for debugging) */
- if (dev->vmalist) {
- for (vma = dev->vmalist; vma; vma = vma_next) {
- vma_next = vma->next;
- drm_free(vma, sizeof(*vma), DRM_MEM_VMAS);
- }
- dev->vmalist = NULL;
- }
-
- /* Clear map area and mtrr information */
- if (dev->maplist) {
- for (i = 0; i < dev->map_count; i++) {
- map = dev->maplist[i];
- switch (map->type) {
- case _DRM_REGISTERS:
- case _DRM_FRAME_BUFFER:
-#ifdef CONFIG_MTRR
- if (map->mtrr >= 0) {
- int retcode;
- retcode = mtrr_del(map->mtrr,
- map->offset,
- map->size);
- DRM_DEBUG("mtrr_del = %d\n", retcode);
- }
-#endif
- drm_ioremapfree(map->handle, map->size);
- break;
- case _DRM_SHM:
- drm_free_pages((unsigned long)map->handle,
- drm_order(map->size)
- - PAGE_SHIFT,
- DRM_MEM_SAREA);
- break;
- case _DRM_AGP:
- /* Do nothing here, because this is all
- handled in the AGP/GART driver. */
- break;
- }
- drm_free(map, sizeof(*map), DRM_MEM_MAPS);
- }
- drm_free(dev->maplist,
- dev->map_count * sizeof(*dev->maplist),
- DRM_MEM_MAPS);
- dev->maplist = NULL;
- dev->map_count = 0;
- }
-
- if (dev->lock.hw_lock) {
- dev->lock.hw_lock = NULL; /* SHM removed */
- dev->lock.pid = 0;
- wake_up_interruptible(&dev->lock.lock_queue);
- }
- up(&dev->struct_sem);
-
- return 0;
-}
-
-/* sis_init is called via init_module at module load time, or via
- * linux/init/main.c (this is not currently supported). */
-
-static int sis_init(void)
-{
- int retcode;
- drm_device_t *dev = &sis_device;
-
- DRM_DEBUG("\n");
-
- memset((void *)dev, 0, sizeof(*dev));
- dev->count_lock = SPIN_LOCK_UNLOCKED;
- sema_init(&dev->struct_sem, 1);
-
-#ifdef MODULE
- drm_parse_options(sis);
-#endif
-
- if ((retcode = misc_register(&sis_misc))) {
- DRM_ERROR("Cannot register \"%s\"\n", SIS_NAME);
- return retcode;
- }
- dev->device = MKDEV(MISC_MAJOR, sis_misc.minor);
- dev->name = SIS_NAME;
-
- drm_mem_init();
- drm_proc_init(dev);
-#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- dev->agp = drm_agp_init();
-#endif
- if((retcode = drm_ctxbitmap_init(dev))) {
- DRM_ERROR("Cannot allocate memory for context bitmap.\n");
- drm_proc_cleanup();
- misc_deregister(&sis_misc);
- sis_takedown(dev);
- return retcode;
- }
-
- DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
- SIS_NAME,
- SIS_MAJOR,
- SIS_MINOR,
- SIS_PATCHLEVEL,
- SIS_DATE,
- sis_misc.minor);
-
- return 0;
-}
-
-/* sis_cleanup is called via cleanup_module at module unload time. */
-
-static void sis_cleanup(void)
-{
- drm_device_t *dev = &sis_device;
-
- DRM_DEBUG("\n");
-
- drm_proc_cleanup();
- if (misc_deregister(&sis_misc)) {
- DRM_ERROR("Cannot unload module\n");
- } else {
- DRM_INFO("Module unloaded\n");
- }
- drm_ctxbitmap_cleanup(dev);
- sis_takedown(dev);
-#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
- if (dev->agp) {
- drm_agp_uninit();
- drm_free(dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS);
- dev->agp = NULL;
- }
-#endif
-}
-
-module_init(sis_init);
-module_exit(sis_cleanup);
-
-
-int sis_version(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_version_t version;
- int len;
-
- if (copy_from_user(&version, (drm_version_t *)arg, sizeof(version)))
- return -EFAULT;
-
-#define DRM_COPY(name,value) \
- len = strlen(value); \
- if (len > name##_len) len = name##_len; \
- name##_len = strlen(value); \
- if (len && name) { \
- if (copy_to_user(name, value, len)) \
- return -EFAULT; \
- }
-
- version.version_major = SIS_MAJOR;
- version.version_minor = SIS_MINOR;
- version.version_patchlevel = SIS_PATCHLEVEL;
-
- DRM_COPY(version.name, SIS_NAME);
- DRM_COPY(version.date, SIS_DATE);
- DRM_COPY(version.desc, SIS_DESC);
-
- if (copy_to_user((drm_version_t *)arg, &version, sizeof(version)))
- return -EFAULT;
- return 0;
-}
-
-int sis_open(struct inode *inode, struct file *filp)
-{
- drm_device_t *dev = &sis_device;
- int retcode = 0;
-
- DRM_DEBUG("open_count = %d\n", dev->open_count);
- if (!(retcode = drm_open_helper(inode, filp, dev))) {
-#if LINUX_VERSION_CODE < 0x020333
- MOD_INC_USE_COUNT; /* Needed before Linux 2.3.51 */
-#endif
- atomic_inc(&dev->total_open);
- spin_lock(&dev->count_lock);
- if (!dev->open_count++) {
- spin_unlock(&dev->count_lock);
- return sis_setup(dev);
- }
- spin_unlock(&dev->count_lock);
- }
- return retcode;
-}
-
-int sis_release(struct inode *inode, struct file *filp)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev;
- int retcode = 0;
-
- lock_kernel();
- dev = priv->dev;
-
- DRM_DEBUG("open_count = %d\n", dev->open_count);
- if (!(retcode = drm_release(inode, filp))) {
-#if LINUX_VERSION_CODE < 0x020333
- MOD_DEC_USE_COUNT; /* Needed before Linux 2.3.51 */
-#endif
- atomic_inc(&dev->total_close);
- spin_lock(&dev->count_lock);
- if (!--dev->open_count) {
- if (atomic_read(&dev->ioctl_count) || dev->blocked) {
- DRM_ERROR("Device busy: %d %d\n",
- atomic_read(&dev->ioctl_count),
- dev->blocked);
- spin_unlock(&dev->count_lock);
- unlock_kernel();
- return -EBUSY;
- }
- spin_unlock(&dev->count_lock);
- unlock_kernel();
- return sis_takedown(dev);
- }
- spin_unlock(&dev->count_lock);
- }
-
- unlock_kernel();
- return retcode;
-}
-
-/* sis_ioctl is called whenever a process performs an ioctl on /dev/drm. */
-
-int sis_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- int nr = DRM_IOCTL_NR(cmd);
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- int retcode = 0;
- drm_ioctl_desc_t *ioctl;
- drm_ioctl_t *func;
-
- atomic_inc(&dev->ioctl_count);
- atomic_inc(&dev->total_ioctl);
- ++priv->ioctl_count;
-
- DRM_DEBUG("pid = %d, cmd = 0x%02x, nr = 0x%02x, dev 0x%x, auth = %d\n",
- current->pid, cmd, nr, dev->device, priv->authenticated);
-
- if (nr >= SIS_IOCTL_COUNT) {
- retcode = -EINVAL;
- } else {
- ioctl = &sis_ioctls[nr];
- func = ioctl->func;
-
- if (!func) {
- DRM_DEBUG("no function\n");
- retcode = -EINVAL;
- } else if ((ioctl->root_only && !capable(CAP_SYS_ADMIN))
- || (ioctl->auth_needed && !priv->authenticated)) {
- retcode = -EACCES;
- } else {
- retcode = (func)(inode, filp, cmd, arg);
- }
- }
-
- atomic_dec(&dev->ioctl_count);
- return retcode;
-}
-
-int sis_lock(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- DECLARE_WAITQUEUE(entry, current);
- int ret = 0;
- drm_lock_t lock;
-#if DRM_DMA_HISTOGRAM
- cycles_t start;
-
- dev->lck_start = start = get_cycles();
-#endif
-
- if (copy_from_user(&lock, (drm_lock_t *)arg, sizeof(lock)))
- return -EFAULT;
-
- if (lock.context == DRM_KERNEL_CONTEXT) {
- DRM_ERROR("Process %d using kernel context %d\n",
- current->pid, lock.context);
- return -EINVAL;
- }
-
- DRM_DEBUG("%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
- lock.context, current->pid, dev->lock.hw_lock->lock,
- lock.flags);
-
-#if 0
- /* dev->queue_count == 0 right now for
- sis. FIXME? */
- if (lock.context < 0 || lock.context >= dev->queue_count)
- return -EINVAL;
-#endif
-
- if (!ret) {
-#if 0
- if (_DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)
- != lock.context) {
- long j = jiffies - dev->lock.lock_time;
-
- if (lock.context == sis_res_ctx.handle &&
- j >= 0 && j < DRM_LOCK_SLICE) {
- /* Can't take lock if we just had it and
- there is contention. */
- DRM_DEBUG("%d (pid %d) delayed j=%d dev=%d jiffies=%d\n",
- lock.context, current->pid, j,
- dev->lock.lock_time, jiffies);
- current->state = TASK_INTERRUPTIBLE;
- current->policy |= SCHED_YIELD;
- schedule_timeout(DRM_LOCK_SLICE-j);
- DRM_DEBUG("jiffies=%d\n", jiffies);
- }
- }
-#endif
- add_wait_queue(&dev->lock.lock_queue, &entry);
- for (;;) {
- current->state = TASK_INTERRUPTIBLE;
- if (!dev->lock.hw_lock) {
- /* Device has been unregistered */
- ret = -EINTR;
- break;
- }
- if (drm_lock_take(&dev->lock.hw_lock->lock,
- lock.context)) {
- dev->lock.pid = current->pid;
- dev->lock.lock_time = jiffies;
- atomic_inc(&dev->total_locks);
- break; /* Got lock */
- }
-
- /* Contention */
- atomic_inc(&dev->total_sleeps);
-#if 1
- current->policy |= SCHED_YIELD;
-#endif
- schedule();
- if (signal_pending(current)) {
- ret = -ERESTARTSYS;
- break;
- }
- }
- current->state = TASK_RUNNING;
- remove_wait_queue(&dev->lock.lock_queue, &entry);
- }
-
-#if 0
- if (!ret && dev->last_context != lock.context &&
- lock.context != sis_res_ctx.handle &&
- dev->last_context != sis_res_ctx.handle) {
- add_wait_queue(&dev->context_wait, &entry);
- current->state = TASK_INTERRUPTIBLE;
- /* PRE: dev->last_context != lock.context */
- sis_context_switch(dev, dev->last_context, lock.context);
- /* POST: we will wait for the context
- switch and will dispatch on a later call
- when dev->last_context == lock.context
- NOTE WE HOLD THE LOCK THROUGHOUT THIS
- TIME! */
- current->policy |= SCHED_YIELD;
- schedule();
- current->state = TASK_RUNNING;
- remove_wait_queue(&dev->context_wait, &entry);
- if (signal_pending(current)) {
- ret = -EINTR;
- } else if (dev->last_context != lock.context) {
- DRM_ERROR("Context mismatch: %d %d\n",
- dev->last_context, lock.context);
- }
- }
-#endif
-
- if (!ret) {
- sigemptyset(&dev->sigmask);
- sigaddset(&dev->sigmask, SIGSTOP);
- sigaddset(&dev->sigmask, SIGTSTP);
- sigaddset(&dev->sigmask, SIGTTIN);
- sigaddset(&dev->sigmask, SIGTTOU);
- dev->sigdata.context = lock.context;
- dev->sigdata.lock = dev->lock.hw_lock;
- block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask);
-
- if (lock.flags & _DRM_LOCK_READY) {
- /* Wait for space in DMA/FIFO */
- }
- if (lock.flags & _DRM_LOCK_QUIESCENT) {
- /* Make hardware quiescent */
-#if 0
- sis_quiescent(dev);
-#endif
- }
- }
-
- DRM_DEBUG("%d %s\n", lock.context, ret ? "interrupted" : "has lock");
-
-#if DRM_DMA_HISTOGRAM
- atomic_inc(&dev->histo.lacq[drm_histogram_slot(get_cycles() - start)]);
-#endif
-
- return ret;
-}
-
-
-int sis_unlock(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_lock_t lock;
-
- if (copy_from_user(&lock, (drm_lock_t *)arg, sizeof(lock)))
- return -EFAULT;
-
- if (lock.context == DRM_KERNEL_CONTEXT) {
- DRM_ERROR("Process %d using kernel context %d\n",
- current->pid, lock.context);
- return -EINVAL;
- }
-
- DRM_DEBUG("%d frees lock (%d holds)\n",
- lock.context,
- _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
- atomic_inc(&dev->total_unlocks);
- if (_DRM_LOCK_IS_CONT(dev->lock.hw_lock->lock))
- atomic_inc(&dev->total_contends);
- drm_lock_transfer(dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT);
- /* FIXME: Try to send data to card here */
- if (!dev->context_flag) {
- if (drm_lock_free(dev, &dev->lock.hw_lock->lock,
- DRM_KERNEL_CONTEXT)) {
- DRM_ERROR("\n");
- }
- }
-
- unblock_all_signals();
- return 0;
-}
+#define DRIVER_AUTHOR "SIS"
+#define DRIVER_NAME "sis"
+#define DRIVER_DESC "SIS 300/630/540"
+#define DRIVER_DATE "20010503"
+#define DRIVER_MAJOR 1
+#define DRIVER_MINOR 0
+#define DRIVER_PATCHLEVEL 0
+
+#define DRIVER_IOCTLS
+#if 0 /* these don't appear to be defined */
+ /* SIS Stereo */
+ [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { sis_control, 1, 1 },
+ [DRM_IOCTL_NR(SIS_IOCTL_FLIP)] = { sis_flip, 1, 1 },
+ [DRM_IOCTL_NR(SIS_IOCTL_FLIP_INIT)] = { sis_flip_init, 1, 1 },
+ [DRM_IOCTL_NR(SIS_IOCTL_FLIP_FINAL)] = { sis_flip_final, 1, 1 }
+#endif
+
+#define __HAVE_COUNTERS 5
+
+#include "drm_auth.h"
+#include "drm_agpsupport.h"
+#include "drm_bufs.h"
+#include "drm_context.h"
+#include "drm_dma.h"
+#include "drm_drawable.h"
+#include "drm_drv.h"
+#include "drm_fops.h"
+#include "drm_init.h"
+#include "drm_ioctl.h"
+#include "drm_lists.h"
+#include "drm_lock.h"
+#include "drm_memory.h"
+#include "drm_proc.h"
+#include "drm_vm.h"
+#include "drm_stub.h"
#ifndef _SIS_DRV_H_
#define _SIS_DRV_H_
- /* sis_drv.c */
-extern int sis_version(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int sis_open(struct inode *inode, struct file *filp);
-extern int sis_release(struct inode *inode, struct file *filp);
-extern int sis_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int sis_irq_install(drm_device_t *dev, int irq);
-extern int sis_irq_uninstall(drm_device_t *dev);
-extern int sis_control(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int sis_lock(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int sis_unlock(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
+typedef struct drm_sis_private {
+ drm_map_t *buffers;
+} drm_sis_private_t;
- /* sis_context.c */
-
-extern int sis_resctx(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int sis_addctx(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int sis_modctx(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int sis_getctx(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int sis_switchctx(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int sis_newctx(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern int sis_rmctx(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-
-extern int sis_context_switch(drm_device_t *dev, int old, int new);
-extern int sis_context_switch_complete(drm_device_t *dev, int new);
-
-int sis_fb_alloc(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg);
-int sis_fb_free(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg);
-
-int sis_agp_init(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg);
-int sis_agp_alloc(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg);
-int sis_agp_free(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg);
+/* Stereo ? - this was never committed */
int sis_flip(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg);
int sis_flip_final(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg);
void flip_final(void);
-
-int sis_init_context(int contexy);
-int sis_final_context(int context);
#endif
+++ /dev/null
-/* sis_ds.c -- Private header for Direct Rendering Manager -*- linux-c -*-
- * Created: Mon Jan 4 10:05:05 1999 by sclin@sis.com.tw
- *
- * Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Sung-Ching Lin <sclin@sis.com.tw>
- *
- */
-
-#define __NO_VERSION__
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/malloc.h>
-#include <linux/poll.h>
-#include <asm/io.h>
-#include <linux/pci.h>
-
-#include "sis_ds.h"
-
-/* Set Data Structure, not check repeated value
- * temporarily used
- */
-
-set_t *setInit(void)
-{
- int i;
- set_t *set;
-
- set = (set_t *)MALLOC(sizeof(set_t));
- for(i = 0; i < SET_SIZE; i++){
- set->list[i].free_next = i+1;
- set->list[i].alloc_next = -1;
- }
- set->list[SET_SIZE-1].free_next = -1;
- set->free = 0;
- set->alloc = -1;
- set->trace = -1;
-
- return set;
-}
-
-int setAdd(set_t *set, ITEM_TYPE item)
-{
- int free = set->free;
-
- if(free != -1){
- set->list[free].val = item;
- set->free = set->list[free].free_next;
- }
- else{
- return 0;
- }
-
- set->list[free].alloc_next = set->alloc;
- set->alloc = free;
- set->list[free].free_next = -1;
-
- return 1;
-}
-
-int setDel(set_t *set, ITEM_TYPE item)
-{
- int alloc = set->alloc;
- int prev = -1;
-
- while(alloc != -1){
- if(set->list[alloc].val == item){
- if(prev != -1)
- set->list[prev].alloc_next = set->list[alloc].alloc_next;
- else
- set->alloc = set->list[alloc].alloc_next;
- break;
- }
- prev = alloc;
- alloc = set->list[alloc].alloc_next;
- }
-
- if(alloc == -1)
- return 0;
-
- set->list[alloc].free_next = set->free;
- set->free = alloc;
- set->list[alloc].alloc_next = -1;
-
- return 1;
-}
-
-/* setFirst -> setAdd -> setNext is wrong */
-
-int setFirst(set_t *set, ITEM_TYPE *item)
-{
- if(set->alloc == -1)
- return 0;
-
- *item = set->list[set->alloc].val;
- set->trace = set->list[set->alloc].alloc_next;
-
- return 1;
-}
-
-int setNext(set_t *set, ITEM_TYPE *item)
-{
- if(set->trace == -1)
- return 0;
-
- *item = set->list[set->trace].val;
- set->trace = set->list[set->trace].alloc_next;
-
- return 1;
-}
-
-int setDestroy(set_t *set)
-{
- FREE(set);
-
- return 1;
-}
-
-/*
- * GLX Hardware Device Driver common code
- * Copyright (C) 1999 Keith Whitwell
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
- * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- */
-
-#define ISFREE(bptr) ((bptr)->free)
-
-#define PRINTF(fmt, arg...) do{}while(0)
-#define fprintf(fmt, arg...) do{}while(0)
-
-static void *calloc(size_t nmemb, size_t size)
-{
- void *addr;
- addr = kmalloc(nmemb*size, GFP_KERNEL);
- memset(addr, 0, nmemb*size);
- return addr;
-}
-#define free(n) kfree(n)
-
-void mmDumpMemInfo( memHeap_t *heap )
-{
- TMemBlock *p;
-
- PRINTF ("Memory heap %p:\n", heap);
- if (heap == 0) {
- PRINTF (" heap == 0\n");
- } else {
- p = (TMemBlock *)heap;
- while (p) {
- PRINTF (" Offset:%08x, Size:%08x, %c%c\n",p->ofs,p->size,
- p->free ? '.':'U',
- p->reserved ? 'R':'.');
- p = p->next;
- }
- }
- PRINTF ("End of memory blocks\n");
-}
-
-memHeap_t *mmInit(int ofs,
- int size)
-{
- PMemBlock blocks;
-
- if (size <= 0) {
- return 0;
- }
- blocks = (TMemBlock *) calloc(1,sizeof(TMemBlock));
- if (blocks) {
- blocks->ofs = ofs;
- blocks->size = size;
- blocks->free = 1;
- return (memHeap_t *)blocks;
- } else
- return 0;
-}
-
-/* Kludgey workaround for existing i810 server. Remove soon.
- */
-memHeap_t *mmAddRange( memHeap_t *heap,
- int ofs,
- int size )
-{
- PMemBlock blocks;
- blocks = (TMemBlock *) calloc(2,sizeof(TMemBlock));
- if (blocks) {
- blocks[0].size = size;
- blocks[0].free = 1;
- blocks[0].ofs = ofs;
- blocks[0].next = &blocks[1];
-
- /* Discontinuity - stops JoinBlock from trying to join non-adjacent
- * ranges.
- */
- blocks[1].size = 0;
- blocks[1].free = 0;
- blocks[1].ofs = ofs+size;
- blocks[1].next = (PMemBlock) heap;
- return (memHeap_t *)blocks;
- }
- else
- return heap;
-}
-
-static TMemBlock* SliceBlock(TMemBlock *p,
- int startofs, int size,
- int reserved, int alignment)
-{
- TMemBlock *newblock;
-
- /* break left */
- if (startofs > p->ofs) {
- newblock = (TMemBlock*) calloc(1,sizeof(TMemBlock));
- newblock->ofs = startofs;
- newblock->size = p->size - (startofs - p->ofs);
- newblock->free = 1;
- newblock->next = p->next;
- p->size -= newblock->size;
- p->next = newblock;
- p = newblock;
- }
-
- /* break right */
- if (size < p->size) {
- newblock = (TMemBlock*) calloc(1,sizeof(TMemBlock));
- newblock->ofs = startofs + size;
- newblock->size = p->size - size;
- newblock->free = 1;
- newblock->next = p->next;
- p->size = size;
- p->next = newblock;
- }
-
- /* p = middle block */
- p->align = alignment;
- p->free = 0;
- p->reserved = reserved;
- return p;
-}
-
-PMemBlock mmAllocMem( memHeap_t *heap, int size, int align2, int startSearch)
-{
- int mask,startofs,endofs;
- TMemBlock *p;
-
- if (!heap || align2 < 0 || size <= 0)
- return NULL;
- mask = (1 << align2)-1;
- startofs = 0;
- p = (TMemBlock *)heap;
- while (p) {
- if (ISFREE(p)) {
- startofs = (p->ofs + mask) & ~mask;
- if ( startofs < startSearch ) {
- startofs = startSearch;
- }
- endofs = startofs+size;
- if (endofs <= (p->ofs+p->size))
- break;
- }
- p = p->next;
- }
- if (!p)
- return NULL;
- p = SliceBlock(p,startofs,size,0,mask+1);
- p->heap = heap;
- return p;
-}
-
-static __inline__ int Join2Blocks(TMemBlock *p)
-{
- if (p->free && p->next && p->next->free) {
- TMemBlock *q = p->next;
- p->size += q->size;
- p->next = q->next;
- free(q);
- return 1;
- }
- return 0;
-}
-
-int mmFreeMem(PMemBlock b)
-{
- TMemBlock *p,*prev;
-
- if (!b)
- return 0;
- if (!b->heap) {
- fprintf(stderr, "no heap\n");
- return -1;
- }
- p = b->heap;
- prev = NULL;
- while (p && p != b) {
- prev = p;
- p = p->next;
- }
- if (!p || p->free || p->reserved) {
- if (!p)
- fprintf(stderr, "block not found in heap\n");
- else if (p->free)
- fprintf(stderr, "block already free\n");
- else
- fprintf(stderr, "block is reserved\n");
- return -1;
- }
- p->free = 1;
- Join2Blocks(p);
- if (prev)
- Join2Blocks(prev);
- return 0;
-}
-
-int mmReserveMem(memHeap_t *heap, int offset,int size)
-{
- int endofs;
- TMemBlock *p;
-
- if (!heap || size <= 0)
- return -1;
- endofs = offset+size;
- p = (TMemBlock *)heap;
- while (p && p->ofs <= offset) {
- if (ISFREE(p) && endofs <= (p->ofs+p->size)) {
- SliceBlock(p,offset,size,1,1);
- return 0;
- }
- p = p->next;
- }
- return -1;
-}
-
-int mmFreeReserved(memHeap_t *heap, int offset)
-{
- TMemBlock *p,*prev;
-
- if (!heap)
- return -1;
- p = (TMemBlock *)heap;
- prev = NULL;
- while (p && p->ofs != offset) {
- prev = p;
- p = p->next;
- }
- if (!p || !p->reserved)
- return -1;
- p->free = 1;
- p->reserved = 0;
- Join2Blocks(p);
- if (prev)
- Join2Blocks(prev);
- return 0;
-}
-
-void mmDestroy(memHeap_t *heap)
-{
- TMemBlock *p,*q;
-
- if (!heap)
- return;
- p = (TMemBlock *)heap;
- while (p) {
- q = p->next;
- free(p);
- p = q;
- }
-}
+++ /dev/null
-/* sis_ds.h -- Private header for Direct Rendering Manager -*- linux-c -*-
- * Created: Mon Jan 4 10:05:05 1999 by sclin@sis.com.tw
- *
- * Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Sung-Ching Lin <sclin@sis.com.tw>
- *
- */
-
-#ifndef _sis_ds_h_
-#define _sis_ds_h_
-
-/* Set Data Structure */
-
-#define SET_SIZE 5000
-#define MALLOC(s) kmalloc(s, GFP_KERNEL)
-#define FREE(s) kfree(s)
-
-typedef unsigned int ITEM_TYPE;
-
-typedef struct {
- ITEM_TYPE val;
- int alloc_next, free_next;
-} list_item_t;
-
-typedef struct {
- int alloc;
- int free;
- int trace;
- list_item_t list[SET_SIZE];
-} set_t;
-
-set_t *setInit(void);
-int setAdd(set_t *set, ITEM_TYPE item);
-int setDel(set_t *set, ITEM_TYPE item);
-int setFirst(set_t *set, ITEM_TYPE *item);
-int setNext(set_t *set, ITEM_TYPE *item);
-int setDestroy(set_t *set);
-
-#endif
-
-/*
- * GLX Hardware Device Driver common code
- * Copyright (C) 1999 Keith Whitwell
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
- * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- */
-
-#ifndef MM_INC
-#define MM_INC
-
-struct mem_block_t {
- struct mem_block_t *next;
- struct mem_block_t *heap;
- int ofs,size;
- int align;
- int free:1;
- int reserved:1;
-};
-typedef struct mem_block_t TMemBlock;
-typedef struct mem_block_t *PMemBlock;
-
-/* a heap is just the first block in a chain */
-typedef struct mem_block_t memHeap_t;
-
-static __inline__ int mmBlockSize(PMemBlock b)
-{ return b->size; }
-
-static __inline__ int mmOffset(PMemBlock b)
-{ return b->ofs; }
-
-static __inline__ void mmMarkReserved(PMemBlock b)
-{ b->reserved = 1; }
-
-/*
- * input: total size in bytes
- * return: a heap pointer if OK, NULL if error
- */
-memHeap_t *mmInit( int ofs, int size );
-
-
-
-memHeap_t *mmAddRange( memHeap_t *heap,
- int ofs,
- int size );
-
-
-/*
- * Allocate 'size' bytes with 2^align2 bytes alignment,
- * restrict the search to free memory after 'startSearch'
- * depth and back buffers should be in different 4mb banks
- * to get better page hits if possible
- * input: size = size of block
- * align2 = 2^align2 bytes alignment
- * startSearch = linear offset from start of heap to begin search
- * return: pointer to the allocated block, 0 if error
- */
-PMemBlock mmAllocMem( memHeap_t *heap, int size, int align2, int startSearch );
-
-/*
- * Free block starts at offset
- * input: pointer to a block
- * return: 0 if OK, -1 if error
- */
-int mmFreeMem( PMemBlock b );
-
-/*
- * Reserve 'size' bytes block start at offset
- * This is used to prevent allocation of memory already used
- * by the X server for the front buffer, pixmaps, and cursor
- * input: size, offset
- * output: 0 if OK, -1 if error
- */
-int mmReserveMem( memHeap_t *heap, int offset,int size );
-int mmFreeReserved( memHeap_t *heap, int offset );
-
-/*
- * destroy MM
- */
-void mmDestroy( memHeap_t *mmInit );
-
-/* For debuging purpose. */
-void mmDumpMemInfo( memHeap_t *mmInit );
-
-#endif
+++ /dev/null
-/* sis_mm.c -- Private header for Direct Rendering Manager -*- linux-c -*-
- * Created: Mon Jan 4 10:05:05 1999 by sclin@sis.com.tw
- *
- * Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Sung-Ching Lin <sclin@sis.com.tw>
- *
- */
-
-#define __NO_VERSION__
-#include <linux/sisfb.h>
-#include "drmP.h"
-#include "sis_drm.h"
-#include "sis_ds.h"
-#include "sis_drv.h"
-
-#define MAX_CONTEXT 100
-#define VIDEO_TYPE 0
-#define AGP_TYPE 1
-
-typedef struct {
- int used;
- int context;
- set_t *sets[2]; /* 0 for video, 1 for AGP */
-} sis_context_t;
-
-static sis_context_t global_ppriv[MAX_CONTEXT];
-
-static int add_alloc_set(int context, int type, unsigned int val)
-{
- int i, retval = 0;
-
- for(i = 0; i < MAX_CONTEXT; i++)
- if(global_ppriv[i].used && global_ppriv[i].context == context){
- retval = setAdd(global_ppriv[i].sets[type], val);
- break;
- }
- return retval;
-}
-
-static int del_alloc_set(int context, int type, unsigned int val)
-{
- int i, retval = 0;
- for(i = 0; i < MAX_CONTEXT; i++)
- if(global_ppriv[i].used && global_ppriv[i].context == context){
- retval = setDel(global_ppriv[i].sets[type], val);
- break;
- }
- return retval;
-}
-
-/* fb management via fb device */
-#if 0
-int sis_fb_alloc(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_sis_mem_t fb;
- struct sis_memreq req;
- int retval = 0;
-
- if (copy_from_user(&fb, (drm_sis_mem_t *)arg, sizeof(fb)))
- return -EFAULT;
-
- req.size = fb.size;
- sis_malloc(&req);
- if(req.offset){
- /* TODO */
- fb.offset = req.offset;
- fb.free = req.offset;
- if(!add_alloc_set(fb.context, VIDEO_TYPE, fb.free)){
- DRM_DEBUG("adding to allocation set fails");
- sis_free(req.offset);
- retval = -1;
- }
- }
- else{
- fb.offset = 0;
- fb.size = 0;
- fb.free = 0;
- }
-
- if (copy_to_user((drm_sis_mem_t *)arg, &fb, sizeof(fb))) return -EFAULT;
-
- DRM_DEBUG("alloc fb, size = %d, offset = %ld\n", fb.size, req.offset);
-
- return retval;
-}
-
-int sis_fb_free(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_sis_mem_t fb;
- int retval = 0;
-
- if (copy_from_user(&fb, (drm_sis_mem_t *)arg, sizeof(fb)))
- return -EFAULT;
-
- if(!fb.free){
- return -1;
- }
-
- sis_free(fb.free);
- if(!del_alloc_set(fb.context, VIDEO_TYPE, fb.free))
- retval = -1;
-
- DRM_DEBUG("free fb, offset = %d\n", fb.free);
-
- return retval;
-}
-
-#else
-
-int sis_fb_alloc(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- return -1;
-}
-
-int sis_fb_free(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- return 0;
-}
-
-#endif
-
-/* agp memory management */
-#if 1
-
-static memHeap_t *AgpHeap = NULL;
-
-int sis_agp_init(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_sis_agp_t agp;
-
- if (copy_from_user(&agp, (drm_sis_agp_t *)arg, sizeof(agp)))
- return -EFAULT;
-
- AgpHeap = mmInit(agp.offset, agp.size);
-
- DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size);
-
- return 0;
-}
-
-int sis_agp_alloc(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_sis_mem_t agp;
- PMemBlock block;
- int retval = 0;
-
- if(!AgpHeap)
- return -1;
-
- if (copy_from_user(&agp, (drm_sis_mem_t *)arg, sizeof(agp)))
- return -EFAULT;
-
- block = mmAllocMem(AgpHeap, agp.size, 0, 0);
- if(block){
- /* TODO */
- agp.offset = block->ofs;
- agp.free = (unsigned int)block;
- if(!add_alloc_set(agp.context, AGP_TYPE, agp.free)){
- DRM_DEBUG("adding to allocation set fails");
- mmFreeMem((PMemBlock)agp.free);
- retval = -1;
- }
- }
- else{
- agp.offset = 0;
- agp.size = 0;
- agp.free = 0;
- }
-
- if (copy_to_user((drm_sis_mem_t *)arg, &agp, sizeof(agp))) return -EFAULT;
-
- DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp.size, agp.offset);
-
- return retval;
-}
-
-int sis_agp_free(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_sis_mem_t agp;
- int retval = 0;
-
- if(!AgpHeap)
- return -1;
-
- if (copy_from_user(&agp, (drm_sis_mem_t *)arg, sizeof(agp)))
- return -EFAULT;
-
- if(!agp.free){
- return -1;
- }
-
- mmFreeMem((PMemBlock)agp.free);
- if(!del_alloc_set(agp.context, AGP_TYPE, agp.free))
- retval = -1;
-
- DRM_DEBUG("free agp, free = %d\n", agp.free);
-
- return retval;
-}
-
-#endif
-
-int sis_init_context(int context)
-{
- int i;
-
- for(i = 0; i < MAX_CONTEXT ; i++)
- if(global_ppriv[i].used && (global_ppriv[i].context == context))
- break;
-
- if(i >= MAX_CONTEXT){
- for(i = 0; i < MAX_CONTEXT ; i++){
- if(!global_ppriv[i].used){
- global_ppriv[i].context = context;
- global_ppriv[i].used = 1;
- global_ppriv[i].sets[0] = setInit();
- global_ppriv[i].sets[1] = setInit();
- DRM_DEBUG("init allocation set, socket=%d, context = %d\n",
- i, context);
- break;
- }
- }
- if((i >= MAX_CONTEXT) || (global_ppriv[i].sets[0] == NULL) ||
- (global_ppriv[i].sets[1] == NULL)){
- return 0;
- }
- }
-
- return 1;
-}
-
-int sis_final_context(int context)
-{
- int i;
-
- for(i=0; i<MAX_CONTEXT; i++)
- if(global_ppriv[i].used && (global_ppriv[i].context == context))
- break;
-
- if(i < MAX_CONTEXT){
- set_t *set;
- unsigned int item;
- int retval;
-
- DRM_DEBUG("find socket %d, context = %d\n", i, context);
-
- /* Video Memory */
- set = global_ppriv[i].sets[0];
- retval = setFirst(set, &item);
- while(retval){
- DRM_DEBUG("free video memory 0x%x\n", item);
- sis_free(item);
- retval = setNext(set, &item);
- }
- setDestroy(set);
-
- /* AGP Memory */
- set = global_ppriv[i].sets[1];
- retval = setFirst(set, &item);
- while(retval){
- DRM_DEBUG("free agp memory 0x%x\n", item);
- mmFreeMem((PMemBlock)item);
- retval = setNext(set, &item);
- }
- setDestroy(set);
-
- global_ppriv[i].used = 0;
- }
-
- /* turn-off auto-flip */
- /* TODO */
-#if defined(SIS_STEREO)
- flip_final();
-#endif
-
- return 1;
-}
#ifdef CONFIG_DRM_SIS
/* SiS specific ioctls */
-#define SIS_IOCTL_FB_ALLOC DRM_IOWR(0x44, drm_sis_mem_t)
-#define SIS_IOCTL_FB_FREE DRM_IOW( 0x45, drm_sis_mem_t)
-#define SIS_IOCTL_AGP_INIT DRM_IOWR(0x53, drm_sis_agp_t)
-#define SIS_IOCTL_AGP_ALLOC DRM_IOWR(0x54, drm_sis_mem_t)
-#define SIS_IOCTL_AGP_FREE DRM_IOW( 0x55, drm_sis_mem_t)
#define SIS_IOCTL_FLIP DRM_IOW( 0x48, drm_sis_flip_t)
#define SIS_IOCTL_FLIP_INIT DRM_IO( 0x49)
#define SIS_IOCTL_FLIP_FINAL DRM_IO( 0x50)
#ifdef CONFIG_DRM_SIS
/* SiS specific ioctls */
-#define SIS_IOCTL_FB_ALLOC DRM_IOWR(0x44, drm_sis_mem_t)
-#define SIS_IOCTL_FB_FREE DRM_IOW( 0x45, drm_sis_mem_t)
-#define SIS_IOCTL_AGP_INIT DRM_IOWR(0x53, drm_sis_agp_t)
-#define SIS_IOCTL_AGP_ALLOC DRM_IOWR(0x54, drm_sis_mem_t)
-#define SIS_IOCTL_AGP_FREE DRM_IOW( 0x55, drm_sis_mem_t)
#define SIS_IOCTL_FLIP DRM_IOW( 0x48, drm_sis_flip_t)
#define SIS_IOCTL_FLIP_INIT DRM_IO( 0x49)
#define SIS_IOCTL_FLIP_FINAL DRM_IO( 0x50)
projects / platform / upstream / libdrm.git / commitdiff